@misc{_Catalogue_1846,
 howpublished={online},
 year={1846},
 language={eng},
 title={Catalogue of twelve hundred and forty-eight stars observed at Washington between October, 1838, and July, 1842, reduced to the Middle Epoch, January, 1, 1840, and compared in right ascension with the mean plsces of the British Association Catalogue},
 keywords={star catalogue, catalogue of 1248 stars, right ascension of stars, the epoch 1840.},
}